data_global
_chemical_name_mineral 'Burbankite'
loop_
_publ_author_name
'Belovitskaya Yu V'
'Pekov I V'
'Kabalov Yu K'
_journal_name_full 'Crystallography Reports'
_journal_volume 45 
_journal_year 2000
_journal_page_first 26
_journal_page_last 29
_publ_section_title
;
 Refinement of the crystal structures of low-rare-earth
 and "typical" burbankites by the Rietveld method
 Sample: B-104
;
_database_code_amcsd 0012366
_chemical_compound_source 'Khibiny Massif, Kola Peninsula, Russia'
_chemical_formula_sum 'Na1.86 Ca1.131 Y.018 Sr2.151 Ba.378 La.051 Ce.018 C5 O15'
_cell_length_a 10.5263
_cell_length_b 10.5263
_cell_length_c 6.5392
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 627.490
_exptl_crystal_density_diffrn      3.386
_symmetry_space_group_name_H-M 'P 63 m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  'y,-x+y,1/2+z'
  '-x+y,y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
NaA   0.52300   0.47700   0.31600   0.62000   0.01900
CaA   0.52300   0.47700   0.31600   0.34000   0.01900
YA   0.52300   0.47700   0.31600   0.00600   0.01900
SrB   0.84300   0.15700   0.00000   0.71700   0.01127
BaB   0.84300   0.15700   0.00000   0.12600   0.01127
CaB   0.84300   0.15700   0.00000   0.03700   0.01127
LaB   0.84300   0.15700   0.00000   0.01700   0.01127
CeB   0.84300   0.15700   0.00000   0.00600   0.01127
C1   0.79600   0.20400   0.54900   1.00000   0.03040
C2   0.00000   0.00000   0.85200   1.00000   0.02026
C3   0.33333   0.66667   0.49000   1.00000   0.02786
O1   0.38200   0.08700   0.63100   1.00000   0.02153
O2   0.92920   0.07080   0.36200   1.00000   0.02913
O3   0.40480   0.59520   0.48200   1.00000   0.02406
O4   0.77400   0.22600   0.35500   1.00000   0.02660
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
NaA 0.01768 0.01768 0.01516 0.00716 0.00181 -0.00181
CaA 0.01768 0.01768 0.01516 0.00716 0.00181 -0.00181
YA 0.01768 0.01768 0.01516 0.00716 0.00181 -0.00181
SrB 0.01053 0.01053 0.01451 0.00463 -0.00030 0.00030
BaB 0.01053 0.01053 0.01451 0.00463 -0.00030 0.00030
CaB 0.01053 0.01053 0.01451 0.00463 -0.00030 0.00030
LaB 0.01053 0.01053 0.01451 0.00463 -0.00030 0.00030
CeB 0.01053 0.01053 0.01451 0.00463 -0.00030 0.00030